Communication barrier was broken.
Explanation: It is because Morse code was created ago with no telephones and no technology, but when communication came into Morse code, communication broke down.
Farming to Complex Civilization. Farming led to people realizing that they can build more then they thought. Being able to stay in one place for a longer period of time.
Over 23,000 men fell as casualties in the one-day Battle of Antietam, making it the bloodiest day in American history. The Union victory at Antietam resulted in President Abraham Lincoln issuing his Preliminary Emancipation Proclamation on September 22, 1862.
